Defines starting with `h' in netimp

• HF_DEAD netimp/if_imphost.h:65
• HF_INUSE netimp/if_imphost.h:64
• HF_UNREACH netimp/if_imphost.h:66
• HOSTDEADTIMER netimp/if_imp.c:87
• HOSTTIMER netimp/if_imphost.h:68
• HPMBUF netimp/if_imphost.h:93